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R. H.TWEDDELL, J. PLATT 8u J. FIELDING.

f PGRTABLBRIVETING MACHINE.

No. 307,360. Patented oet. 28, 1884.

IUNTTDD STATES PATENT Ormes.

vRALPH HART TW'EDDELL, OF VESTMINSTER, COUNTY OF MIDDLESEX, AND JAMESPLATT AND JOHN FIELDING, -OF GLOUCESTER, COUNTY OF GLOUCESTER, ENGLAND.

PORTABLE RlVETlNG-IVIACHINE.

.CFECTFCATION forming part of Letters Patent No. 307,360, dated October28, 1884.

Application led June 2l, 1884. (No model.) Patented in England November10, lSSO, No. 4,609.

To alt whom, t may concern:

Be it known that we, RALPH HART TwED- DELL, of Westminster, in thecounty of Middlesex, and JAMES BLATT and JOHN FIELD- ING, of Gloucester,in the county of Gloucester and Kingdom of Great Britain, have inventedcertain new and useful Improvements in Portable Riveting-Machines; andwe do hereby declare the following to beafull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make andv use the same.

Our invention -relates to an improvement in portable riveting-machines,the object of the' same being to provide improved means for adjustingthe riveting-machine to any desired angle or inclination; and itconsists in the parts and combinations of parts, as will be more fullydescribed, and pointed out in the claims.

In the accompanying drawings, Figure l is a view of one style ot'riveting-machine emi bodying our invention. Fig., 2 is an end View ofthe same. Fig. Bis a longitudinal sectional view of one of thetrunnions. Fig.`4 is asimilar view of the other trunnion. Fig. 5 is aviewshowinga slightly modified construct-ion, and Fig. 6 is an end viewof the same.

This improvement relates particularly to manipulating the riveter, andnot to the construction of the riveter itself; and for the purpose ofillustration we have shown our improvements on two distinct kinds ofmachines, and would have it understood that we do not limit ourselves toany particular construction, but consider ourselves at liberty toapplythem to any andl all portable machines to which they areapplicable.

The riveter shown in Fig. l consists of two levers connected together ata convenient point between their ends, one of said levers being providedat one end with a piston adapted to work in a cylinder formed on orattached to the adjacent end of the other lever. The lever having thecylinder thereon is provided with a valve for governing the ilowof waterinto and from the cylinder', which is supplied through the pipe B, oneend of which is secured to the hollow trunnion A. This trun nion Asupports the levers G,which latter are 5o journaled thereon, and thetrunnion' is provided with a central bore, C, which latter is merely acontinuation of the pipe B. This trunnion A is secured at one end to thearm D, which latter is provided at its outer end with a trunnion, E. Oneof the levers C is provided on the side adjacent to the arm D with aworm-wheel, Bt, which latter meshes with a worin, B5, secured to the armD. Thus it will be seen that by turning the worm the levers 6o can beturned so as to rest in the same vertical plane-that is, the levers canbe turned to a horizontal position, with their riveting-tools in avertical position.

To one end of the bore C of thetrunnionA is secured the pipe B', throughwhichtheactuating-fluid is conveyed to the trunnion A. This pipe passesrearwardly alongside of the arm D, and is secured thereto at.the pointB2, the said part B2 of the arm D being provided 7o withabore, a,leading to the boreb of the trunnion E. This trunnion E is journaledinthebox F, rigidlysecured to the lower open endof the arm G,and thetrunnion E is provided with the worm-wheel II, rigidly secured thereto,with 7 5 which the worm I, journaled in the bearings c of the box F,meshes. Thus it will be seen that by means of the worms at the oppositeends of the arm D the machine can be turned to any angle or inclinationto suit the work to be op- 8o erated on.

The arm G, before referred to, is curved, substantially as shown, andterminates over the center of gravityof the riveter. This arm isprovided with an opening, c, through which the lower hooked end of thesuspending link L is passed. This link is suspended from a crane orother suitable device, and forms a connection between the supply-pipe Mand the flexible pipe M', which latter is preferably 9o made of copperand connected at its lower end to the trunnion E. The actuating-fluidpasses from the pipe M into pipe M', and from thence, through trunnionE, pipe B', trunnion A, and pipe B, into the valve. v

In Fig. 5 we have shown a slightly-moded arrangement of parts as appliedto a direct-acting ri veter. The body or frame of this riveter is madeU-shaped, and provided with a cylinder, in whieha plunger carrying themovable riveting-tool works.- This cylinder communicates with the valveby the pipe B, and the valve with the trunnion A by the pipe Thetrunnion A in this construction need not be hollow, and is supported bythe arms DL of the trunnion A., which latter is journaled in the lowerend of the arm G. ln this instance the pipe B and pipe B are on the sameside ot" the machine, and are secured together at the trnnnion A by aswivel joint, L.

shown in elevation in Fig. 5 is removably secured thereto by thebolts/'2 The trunnion E passes through the .lower end of the arm G, andis provided at its outer end with a wormwheel meshing with a worm.similar to that shown in Fig. 1. In this construction I have dispensedwith the worm-gear on the trunnion A, and substituted therefor apinion(not shown) meshing with the rack-bar O, formed integral. with orsecured to the body ot' the riveter. rlhis pinion secured to one end ofthe shaft O,while the worm-wheel O`, meshing with the worm 0, is securedto the opposite end of said shaft. The shaft O and worm Oi are journalcdin the removable arm 1)" ot" the trunnion E. The rack O is .toi-med inthe arc ot' a circle, a-ndin the present instance will admit ot' aquarter-turn of the machine; but itis evident that the rack-bar can becontinued or lengthened sufficiently to give the machine a half-turn.Thus itwill be seen that by turning the worin O the riveterwill beturned on the trunnion A, and by turning the worm l the movement ot' theriveter will be at right angles to theiirst movement. The worms andworm-wheels not onl)v a'iord means for turning the riveter, .but alsoeft'ectually lock the same against accidental movement.

A3y means ot' the construction shown and described the horizontal arm towhich the riveter isjonrnaled can be turned so as to rotate the riveterin one direction, while by turning the riveter around its its own axison the trunnion A. the movement is at right angles to ihe irstnnrve'inent; hence by means of the combined movements the riveter can beset at any angle or inclination to enable it to accommodate itself tothe work.

Heretofore in machines ot'this vcharacter the l riveter has beenr.journaled to opposite ends oi' a curved suspending` arm7 and the curvedsus pending arm inovably supported on a roller. \Vhen desired to adjustthe riveter in one direction, the curved suspending` arm is movedlongitudinally on the pulley. In such devices the supporting-arm isloosely mounted in the pulley, and is liable to change its position ifthe parts are not evenly balanced, and from the sudden jars during theoperation of riveting. In our device the curved suspending arm isattached at its upper end to a hook, and provided at its opposite endwith a bearing, in which a horizontal arm isjournaled, while the riveteris in turn journaled to said horizont-al arm. ly the above arrangementthe riveter can be turned to any position without moving the curved arm,and as the latter is not free to move over the hook, all danger oii theriveter changing its position is obviated.

Having `fully described our invention, what we claim as new, and desireto secure by Lety ters'Patcnt, is- One of the arms Dl is formedintegral. with the trunnion E, while the one on the side l. rlhecombination of a curved arm adapted to be suspended trom a crane orother suitable support, a horizontal arm journaled to the lower end ot'the curved arm, av portable riveting-machinejournaled to th c horizontalarm, and the locking devices lor locking the movable parts in anydesired adjustment.

2. rlhe combinationoi' a curved suspending arm, a horizontal armjournaled thereto, a portable riveting machine iournaled to thehorizontal arm, and adapted to turn on the horizontal arm in a directionat right angles to the movement ofthe said horizontal arm, and thedevices for locking the movable parts 'in any desired adjustnient.

3. The combination, with a portable hydraulic riveting-mac]line and asuitable supply or pressure pipe and swivel-joints, of a horizontal armto which the rivetilig-machine is journaled, the devices Vfor turningthe machine and locking it to the arm, a curved arm to which thehorizontal arm is journaled, and the devices forturning the horizontalarm and locking it to the curved arm, substantially as set forth. Y i

The combination, with a portable riveting-i'nachine provided with arack-barformed inthe arc ol` a circle, ot' ahorizontal armjournalcd to acurved arm, and provided with apinion, the devices for turning thepinion, a woran-wheel rigidly secured to said horizontal arm, and a wormjournaled tothe curved arm.

5. rlhe combination, with a portable riveting-machine and suitablesupply-pipe, et' the horizonal arm, curved arln, rack-bar and pinion,worm-gear and worm, and the hook L, all ot the above parts combined asdescribed.

In testimony whereof l have signed this specification in the presenceot' two subscribing witnesses.

l-L-Xl'ill'l' HART lVEDDllLL.

`Witnesscs:

ln testimony whereof we have signed-this specification in the presenceof two subscribing witnesses.

JAMES PLATT. JOHN FIELDIS G. Witnesses:

.Toi-IN A. Porn, H. @.tnnXNia.

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